Electricity: measuring and testing – Magnetic – With means to create magnetic field to test material
Reexamination Certificate
2008-06-17
2008-06-17
Patidar, Jay M (Department: 2862)
Electricity: measuring and testing
Magnetic
With means to create magnetic field to test material
C324S202000, C324S228000, C376S245000
Reexamination Certificate
active
07388369
ABSTRACT:
The present invention provides a method for measuring hydrogen concentration in an electrically conductive material, such as a nuclear fuel rod, comprising calibrating an eddy current probe at a plurality of hydrogen concentrations; measuring eddy currents at a plurality of positions along an electrically conductive material; and calculating a hydrogen concentration in the electrically conductive material at each of the positions along the electrically conductive material. The present invention also provides a system for measuring hydrogen concentration in a nuclear fuel rod, comprising an eddy current probe; a nuclear fuel rod calibration standard; a data handling system for collecting data generated by the eddy current probe and for performing calculations using the data. The system may be utilized in-situ and may comprise a movable probe mount configured to hold the eddy current probe and to traverse the calibration standard and the nuclear fuel rod to be measured.
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International Search Report mailed Mar. 28, 2007 corresponding to PCT/US05/39666.
Edsinger Kurt
Johnson Duane P.
Yagnik Suresh K.
Electric Power Research Institute Inc.
Kilpatrick & Stockton LLP
Patidar Jay M
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